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This abstract is assigned to session BOG-SBO 3 Voorste oogsegment / Segment antérieur

Title	Myopia: more than a refractive error - LASIK and retinal dystrophies
Abstract Nr.	A1066

Purpose	To illustrate the need for in depth preoperative evaluation of myopic patients about to undergo Laser In Situ Keratomileusis (LASIK) when signs or symptoms suggesting problems of night blindness and/or photophobia are present.
Methods	Three patients who had undergone LASIK correction for myopia were examined. Because of suboptimal visual acuity (VA) and night blindness and/or photophobia, all 3 patients underwent a comprehensive ophthalmological, psychophysical & electrophysiological examination.
Results	Preoperative VA was said to have been 10/10 in BE of 1 of the 3 patients. VA was 7/10 to 8/10 in BE of the 2 other patients. After one or several LASIK procedures on BE, all 3 patients showed suboptimal VA and complained about night blindness and/or photophobia. Preoperative SLE and IOP were said to be unremarkable for the 3 patients. In the first and third cases fundoscopy had revealed only myopic fundus changes. The second patient had pigment alterations in both maculae. Results of all tests showed that 2 of the 3 patients suffered from a progressive cone-rod dystrophy. The third patient has retinitis pigmentosa.
Conclusion	In the presence of either fundus abnormalities or specific complaints of night blindness and/or photophobia, a thorough examination should be performed prior to LASIK. Indeed, in such patients, the presence of a retinal dystrophy should always be suspected. Performing LASIK on such patients is acceptable, provided they are fully informed of the limitations of the potential results.

Author 1

Last name	WALRAEDT
Initials	S
Department	Ghent University Hospital
City	Ghent

Author 2

Last name	LEROY
Initials	BP
Department	Ghent University Hospital
City	Ghent

Author 3

Last name	KESTELYN
Initials	P
Department	Ghent University Hospital
City	Ghent

Author 4

Last name	DE LAEY
Initials	JJ
Department	Ghent University Hospital
City	Ghent